As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK EXFOLIATION CORROSION WAS FOUND ON CENTER INBOARD SIDE OF STRINGER 22 L/H, AFT OF DOME PLATE NUT AND ABOVE EMERGENCY LIGHT ASSEMBLY AT BS 776. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS OUT OF LIMITS. CUTOUT DAMAGED SECTION OF STRINGER 22 L/H; FABRICATED 2 EACH ANGLES AND A SPLICE CHANNEL; AND INSTALLED REPAIR PARTS IAW B737-200 SRM 53-10-3, PG. 3-10.